Ordering new truck, have a question..

gcope63 · January 22, 2004

I will be ordering a new truck next week (2500HD 4X4 CC SB 8.1/Ally) and wanted some opinions about rear axle ratios? I will be changing over to 285/75-16 BFG AT's soon after getting the truck and am wondering if I should go ahead and get the 4.10's or go with the better economy of the 3.73's. Do you think there will be much difference in the mileage between the two ratios??

Thanks!!

Gary

364cubes · January 22, 2004

Personally, I would go with the 3.73. I wish it had been available with the 6 liter. I don't think you'll have any problem with power, and a more economical ratio wouldn't hurt.

shelbyd · January 22, 2004

I would have done the 3:73 if they were available for the mileage improvement unless you need the gearing for pulling a lot of weight on the hill a lot of the time.

Roofer · January 22, 2004

3.73's are all the Dmax needs, it will begreat plenty for the 8.1 plus get better mileage than 4.10's. If it were a 6.0 I would say 4.10's, but with the 8.1 you want mileage, because power is not a problem.

GM GIMP · January 23, 2004

I had a 2001 Ext cab 8.1 with the 4.10. Gas mileage was terrible (also terrible

with 3.73's) but get the 3.73 if you don't plan on towing heavy loads.

gcope63 · January 23, 2004

I am looking at towing a 5000 - 6000 pound boat along with a camper... but this will only be during the summer months, the rest of the time it will just be around the house..

Also, the best quote I have gotten is $38725.00, how does this sound? It is a CC LT loaded with DVD and XM. This is before rebates since I am ordering so if you include the current rebate it comes down to $36226.00...

Gary